diff options
Diffstat (limited to 'drivers/hwmon/lm78.c')
| -rw-r--r-- | drivers/hwmon/lm78.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index cf7a2a7f54b..570098e1536 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -24,6 +24,8 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> +#include <linux/hwmon.h> +#include <linux/err.h> #include <asm/io.h> /* Addresses to scan */ @@ -134,6 +136,7 @@ static inline int VID_FROM_REG(u8 val) allocated. */ struct lm78_data { struct i2c_client client; + struct class_device *class_dev; struct semaphore lock; enum chips type; @@ -602,6 +605,12 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind) } /* Register sysfs hooks */ + data->class_dev = hwmon_device_register(&new_client->dev); + if (IS_ERR(data->class_dev)) { + err = PTR_ERR(data->class_dev); + goto ERROR3; + } + device_create_file(&new_client->dev, &dev_attr_in0_input); device_create_file(&new_client->dev, &dev_attr_in0_min); device_create_file(&new_client->dev, &dev_attr_in0_max); @@ -640,6 +649,8 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +ERROR3: + i2c_detach_client(new_client); ERROR2: kfree(data); ERROR1: @@ -651,8 +662,11 @@ ERROR0: static int lm78_detach_client(struct i2c_client *client) { + struct lm78_data *data = i2c_get_clientdata(client); int err; + hwmon_device_unregister(data->class_dev); + if ((err = i2c_detach_client(client))) { dev_err(&client->dev, "Client deregistration failed, client not detached.\n"); @@ -662,7 +676,7 @@ static int lm78_detach_client(struct i2c_client *client) if(i2c_is_isa_client(client)) release_region(client->addr, LM78_EXTENT); - kfree(i2c_get_clientdata(client)); + kfree(data); return 0; } |